Including the two mana it takes to produce the Egg, you rarely spend more than four mana to get massive monsters into play
1 Sentinel Sliver
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These arent the only mechanics that make face-down 2/2s
(2023-06-16) Some cards refer to the "amassed Army." That means the Army creature you chose to receive counters, even if no counters were placed on it for some reason
Those formats werent so blisteringly fast that youd be left behind after taking turns one and two off
